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Flavor 987S · 05-18-2013, 05:07 AM

At my fall oil change, with Mobil 5W50 my copper was at 7 and my Zinc and Phos. were at 1,669 and 1,196 respectively. Our Alum and iron number are similar. About 52,000 miles on the motor and 6,700 miles on that oil.

05-18-2013, 05:07 AM	#2
Flavor 987S Registered User Join Date: Jul 2009 Location: Arlington Heights, IL Posts: 1,561	At my fall oil change, with Mobil 5W50 my copper was at 7 and my Zinc and Phos. were at 1,669 and 1,196 respectively. Our Alum and iron number are similar. About 52,000 miles on the motor and 6,700 miles on that oil.